13
6
Powering On the System
Before turning on the AC switch between the SUN2000 and the power grid, check whether the
AC voltage is within the specified range.
After turning on the AC switch, turn on the DC switch within 1 minute. Otherwise, the SUN2000
will start to export power to the power grid. If you turn on the DC switch in this case, the
SUN2000 will shut down first, and then restart to export power to the power grid.
1. Turn on the AC switch between the SUN2000 and the power grid.
2. Turn on the DC switch between the PV string and the SUN2000 if there is any.
3. Turn on the DC switch at the bottom of the SUN2000.
4. Observe the LEDs to check the SUN2000 operating status. All status labels are available on
the left side of the SUN2000.
Type
Status (Blinking at Long Intervals: On for 1s
and then Off for 1s; Blinking at Short
Intervals: On for 0.2s and then Off for 0.2s)
Meaning
Running
indication
LED1
LED2
N/A
Steady green
Steady green
The SUN2000 is
exporting power to the power grid.
Blinking green at
long intervals
Off
The DC is on and the AC is off.
Off
Blinking green at long
intervals
The DC is off and the AC is on.
Blinking green at
long intervals
Blinking green at long
intervals
Both the DC and AC are on, and
the SUN2000 is not exporting
power to the power grid.
Off
Off
Both the DC and AC are off, or the
SUN2000 is in low power
consumption mode.
Steady red
Steady red
The SUN2000 is faulty.
Communicati
on indication
LED3
N/A
Blinking green at short intervals
The SUN2000 is in communication.
Blinking green at long intervals
The SUN2000 has connected to the
mobile phone.
Off
No communication
